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DLPDLCR230NPEVM: CAIC and actuator

Ulrich Weiger
Prodigy 20 points
Part Number: DLPDLCR230NPEVM
Other Parts Discussed in Thread: DLPC3436

Dear DLP community,

I have two furter questions regarding the DLP® LightCrafterTm Display 230NP EVM.

1.

I want to test the CAIC and created Phython commands as follows (inserted in the Python template script):

WriteLedOutputControlMethod(1)
WriteCaicImageProcessingControl(4)

While I don't get an error message, I don't see any effect. on the screen. Do I have the wrong argument numbers?

2.

The dlp 230NP EVM seems to have an optical actuator to get 1920*1080 resolution with 960*540 pixel. Is this actuator switched on by default? And can I switch this actuator on/off using a python script?

Thanks in advance,

Ulli

  • 0
    TI__Mastermind 28005 points

    Ulli,

    The actuator configuration settings should all be configured by default save for the Actuator Global DAC Output Enable signal, which is enabled during the init_parallel_mode.py script. Once this DAC is enabled, the Actuator on the system would be running. You can, of course, switch this actuator on and off by leveraging the same Python command to set the DAC to disabled instead.

    For CAIC control, I recommend reviewing some of the sample code in sample03_display.py. This module has an example of how to configure and set up the CAIC commands. Per the DLPC3436 programmer's guide, one of the CAIC settings you can enable is a onscreen display which shows the modulated LED current values produced by the CAIC algorithm. If you are unsure whether CAIC is functioning I recommend enabling this onscreen display during video playback for debug purposes.

    https://www.ti.com/lit/ug/dlpu078/dlpu078.pdf

    I hope this helps.


    Regards,

    Philippe